首页> 外文会议>Annual International Meeting of the American Society of Agricultural and Biological Enginners >Field Measurement of Carbon Dioxide, Methane and Nitrous oxide Emissions from Manure Stockpile and Open Exercise Yard of a Typical Dairy Farm in Chinaby Chamber Technique .
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Field Measurement of Carbon Dioxide, Methane and Nitrous oxide Emissions from Manure Stockpile and Open Exercise Yard of a Typical Dairy Farm in Chinaby Chamber Technique .

机译:作者:郝建军,王建华,王建华,王建华,王莹,王莹,王莹,王莹,王莹,王莹,王莹,王莹,王莹,王莹,王莹,王莹,王莹

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In typical dairy production and management system of China, outdoor exercise yard and stockpiles play a major role in emissions of pollutants to atmosphere. GHG (C02, CH_4 and N20) emissions from brick-paved yard and manure stockpiles of a typical dairy farm in Beijing were measured by closed chamber in four different seasons. There are cubicles in the yard and manure in the yard was removed once a day by tractor. C02, CH_4 and N20 emissions from the yard were within the range of 0.2-42 mgm~2 min- 1-616 ug nr2 min1 and 0.3-129 ug m~2 min1 in different seasons, respectively. GHG emissions from exercise yard showed a seasonal variation. GHG emission rates from different zones (cubicle zone vs. aisle zone) of the loftgreatly varied, and the emissionswere significantly affected by manure removal strategy (P<0.05). The zone near cubicles on the yard had more excreta and higher CO2 and CH_4 emissions (P<0.05), while N2O emissions showed a disparity in different seasons. Compared with the result beforemanure removal, N2O emissions "were greatly higher after manure removal both at aisle and cubicle zones (P<0.05). Stacking height of the manure stockpiles measured was averaged at 55±12 cm. CO2, CH_4 and N20 emissions from manure stockpiles were 4-168 mg nr2 mirr1, 0.02-1.79 mg m~2 min1 and 0.62-536 ug m~2 mirr1, respectively. GHG emissions from stockpile also showed a seasonal variation. Volatile solid in manure and temperature were the key factors affecting C02and CH_4 emissions. N20 emissions were affected by manure storage duration.
机译:在中国的典型乳制品生产和管理系统中,户外运动院子和库存在污染物的排放中发挥了重要作用。砖砌院子里和粪便库存的GHG(CO 2,CH_4和N20)北京典型乳制品农场的排放量是四个不同季节的封闭室测量。院子里有码下的小隔间,院子里的粪便被拖拉机每天一次删除一次。 C02,CH_4和N20院子的排放在0.2-42mgm〜2 min- 1-616 ug NR2 min1和0.3-129 ug m〜2 min1的范围内,分别在不同的季节。运动院子的温室气体排放表现出季节性变化。从不同地区(厘米区与过道区)的GHG排放率的高级变化,辐射治疗粪便清除策略显着影响(P <0.05)。院子里靠近隔间的区域有更多的Excreta和更高的二氧化碳和CH_4排放(P <0.05),而N2O排放在不同的季节显示出差距。与结果相比,在过道和卧局的粪便中除去后,N2O排放量大大提高了(P <0.05)。测量的粪便库存的堆叠高度在55±12厘米处平均。CO2,CH_4和N20排放量粪便库存分别为4-168毫克NR2 mir1,0.02-1.79 mg m〜2 min1和0.62-536 UG m〜2 mirl1。来自库存的温室气体排放也显示出季节性变化。粪肥和温度中的挥发性固体是关键因素影响C02和CH_4排放。N20排放受粪便储存持续时间的影响。

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